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  • 名称: Thin film polarizer
  • 编号: 143
  • 上传时间: 2014-08-01
  • 浏览次数: 349

Thin Film Polarizers separate the s- and p-polarization components. They are designed for use in high energy laser applications. Due to a high damage threshold, Thin Film Polarizers are used as an alternative to Glan Laser Polariser or Polarising Beamsplitter Cube.

Typical applications are intracavity Q-switch hold-off polarizer or extracavity attenuator for Nd:YAG lasers.

For optimal transmission Thin Film Polarizer should be mounted in an appropriate holder for angular adjustment.

Thin Film Polarizers are used in any Q-switch Pulsed lasers both in Industrial and medical systems, where they serve as intracavity Q-switch hold-off polarizers.  They also can be used as extracavity attenuator for Nd:YAG lasers.

ADVANTAGE:

Provide linear polarization of laser radiaton

Rs/Tp:>99.8/95.0 % for standard thin film polarizers or Rs/Tp:>99.8/98.0 % for high transmittance thin film laser polarizers

High damage threshold reaching 10 J/cm2

High Extinction ratio ~ 1000:1 and 500:1

Wide working temperature (-40~ +60)

 

Material

BK7 or Fused Silica

Parallelism

≤20″

Wavelength Range

470nm-1350nm

Flatness

λ/[email protected]

Extinction Ratio

>1000:1 ,  >500:1

Wavefront Distortion

λ/[email protected]

Diameter Tolerance

+0/-0.1mm

Chamfer

≤0.2mmx45°

Thickness Tolerance

+/-0.2mm

Chips

≤0.1

Scratch/Dig

60/40

Clear Aperture

≥90%

Coatings

Tp>98% Ts<0.2  brewster angle

Tp>95% Ts<0.2  brewster angle

Damage threshold

10J/cm² 10ns 10Hz at 1064nm

 

P/N

Wavelength(nm)

Extinction Ratio

Size(mm)

AOI

TFP-BK-1064-1000-122

1064

1000:1

Dia.12.72

Brewster Angle

TFP-BK-1064-1000-253

1064

1000:1

Dia.25.43

Brewster Angle

TFP-BK-1064-1000-303

1064

1000:1

Dia.303

Brewster Angle

TFP-BK-1064-1000-27162

1064

1000:1

27162

Brewster Angle

TFP-BK-1064-1000-30203

1064

1000:1

30203

Brewster Angle

TFP-BK-1064-500-122

1064

500:1

Dia.12.72

Brewster Angle

TFP-BK-1064-500-253

1064

500:1

Dia.25.43

Brewster Angle

TFP-BK-1064-500-303

1064

500:1

Dia.303

Brewster Angle

TFP-BK-1064-500-27162

1064

500:1

27162

Brewster Angle

TFP-BK-1064-500-30203

1064

500:1

30203

Brewster Angle